Sigmtjnd bergmann



(No Model.)

s. BERGMANN. COMBINED GAS AND ELEUTRIO LIGHT FIXTURE.

N0. 26 271. Patented-Aug. 8, 1882.,

WITNESSES 751M WM 1 7 5% ATTORNEY UNITED STATES PATENT EErcE.

SIGMUND BERGMANN, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO EDWARD H. JOHNSON, OF .SAME PLACE.

COMBINED GAS AND ELECTRIC-LIGHT FIXTURE.

SPECIFICATION forming part of Letters Patent No. 262,271, dated August 8, 1882.

Application filed April 97, 1882. (No model.)

To all whom it may concern Be it known that I, SIGMUND BERGMANN, of the city, county, and State of New York, have invented a new and useful Improvement in Combined Gas and Electric-Light Fixtures, of which the following is a specification.

The object I have in view is to produce a simple and efficientcombined gas and electriclight fixture, and also efficient means for providing simpleformsofgas-fixtures with attachments carrying incandescing electric lamps, whereby both gas and electric light can be used at the same time or either can be used, as desired; or, if the electric current is furnished at certain hours only, then the gas can be used at other times, and there will be no danger of the formation of a ground-connection with the gas-fixture.

The features of invention are fully hereinafter explained, and pointed out by the claims.

In the accompanying drawings, forming a part hereof, Figure l is a side elevation of a wall-bracket embodying my invention; Fig. 2,asection of theinner end of the samethrough the wall-cap; Fig. 3, an elevation of a chandelier embodying the invention, and Fig. 4 a perspective view of the clamp employed with the construction shown in Fig. 3.

The arm A of a gas-bracket or the stem B ofa gas-chandelier has attached to it one or more pipes, O or D, which support the incandescing electric lamps E, and have run through them the insulated conducting-wires l 2 for supplying such lamps. The electric -lampcarrying tubes or pipes are supported a definite distance off from the gas tubes or pipes, and preferably parallel therewith for a portion of their length, by means of clamps F or G. These clamps are made of insulating material, such as hard rubber; or the electriclamp-carrying tubes may be themselves constructed of non-conducting material, in which case the clamps could be made of metal. By either of these constructions the electric tubes will be insulated from the gas-tubes, and there will be no danger of the formation of a groundconnection through the gas-fixtures. The connection shown in Figs. 1 and 2 is that of a wall-bracket especially constructed for using gas and electricity simultaneously.

The electric-lamp-carrying tube 0 is supported beneath the gas-tube, and has its lamp hanging downwardly. This tube C is ot'metal, and the clamp F is of insulating material.

The wall-cap a of the bracket has a center, I), of hard rubber or other insulating material, through which both the gas and electric tubes pass.

The whole fixture is sustained by the attachment of the gas-tube of the fixture to the gas-pipe projecting from the wall. The wires 1 2, running through tube (3, may pass through from the inside of the wall or be led to the bracket by a molding or otherwise. It is evident that two or more electric tubes could be supported from the gas-tube of the fixture in this manner.

In Figs. 3 and 4 is shown a construction adapted for a special chandelier, or for the attachment of one or more electric lamps to a simple form of gas-chandelier.

Two electric lamp -carrying tubes 1) are shown, although one could be used, or more than two. The clamps G are made in two parts, of hard rubber or other insulating material, such parts being secured together upon the gas and electric tubes (one or more) by screws or otherwise. The tubes D are shown as running nearly to the upper end of the gastube B. They stop short of the ceiling, however, to permitthe making of proper connections with the wires. When used as an attachment to gas-chandeliers the electric tubes D can be readily removed at any time and replaced wiihout disfiguring the gas-chandelier.

In both the bracket and chandelier it will be understood that the electric tube or tubes are supportedadefinite distance from the gas-tube, and are insulated therefrom by non-conducting clamps or securing-connections, or by making the electric tubes themselves of non-conducting material, in order to comply with all requirements relating to the running of electric'light wires in proximity to gas or other grounded metallic pipes.

It will be understood that both the gas and electric tubes may be covered by an ornamental tube of metal or insulating material for a portion of their length, to give the fixture a more finished appearance.

WhatIclaimis of the electric-lamp tube 0, secured to the 1. The combination, with a gas-fixture, of gas-tube, and the cap a, supported from the 15 an electric-lamp-carryingtube supported from gas-tube and covering the inner end of the the gas-fixture and insulated therefrom, subelectric-lamp tube, substantially as set forth.

5 stantially as set forth. 4. The combination, with the gas-tube A,

2. Acombined gas and electric-light fixture ot' the electric-lamp tube 0, the cap a, having composed of a gas-tube and one or more elecinsulating-center Z), and the insulating-clamp 2o tric-larnp-earrying tubes supported from the r F, substantially as set forth.

gas'tube at a definite minimum distance there- 10 from, and insulated from such gas-tube, the SIGMUND LERGMANN' gas and electric tubes being parallel for a por- Witnesses:

tion of their length, substantially as set forth. WM. H. MEADoWoRoF'r,

3. The combination, with the gas-tube A, H. V. SEELY. 

